The Cori cycle, named after its discoverers, Carl Ferdinand Cori and Gerty Cori, is a metabolic pathway in which lactate, produced by anaerobic glycolysis in muscles, is transported to the liver and converted to glucose, which then returns to the muscles and is cyclically metabolized back to lactate.

Carl Ferdinand Cori, ForMemRS was a Czech-American biochemist and pharmacologist. He, together with his wife Gerty Cori and Argentine physiologist Bernardo Houssay, received a Nobel Prize in 1947 for their discovery of how the glucose derivative glycogen is broken down and resynthesized in the body for use as a store and source of energy. In 2004, both Coris were designated a National Historic Chemical Landmark in recognition of their work that elucidated carbohydrate metabolism.